Stihl 026 non-adjustable oil pump missing parts

[daytradet]

After taking apart this non-adjustable oil pump (part# 1121 647 0400) on an old 026 I noticed that it appears to be missing some pieces; the plug, two washers and a compression spring - according to the stihl 026 parts diagram. I took the pump to Stihl and they said that they no longer sell these pieces seperately and that I would have to buy a new oil pump - 80$!. So does anyone know the washer size or a type of spring that would work for this - I'm in Canada, and can't seem to find the pieces online anywhere, including all of the US or UK sites. The piston and oil pump are in great shape. It would be a shame to have to buy a used or new pump if I could find some pieces that would make this thing work. View attachment 232256View attachment 232257

 

[quicksilver-ms]

This pump should work 1121 640 3202 .You can find them on the bay for about 15 to 25 bucks.

 

[daytradet]

Ok let's rephrase this question. Does anyone know the dimensions of the 2 washers and 1 compression spring found on this oil pump parts list:View attachment 232387

2 Washers Part #3 - 0000 958 0407
1 Compression Spring #4 - 0000 997 0504